Smoke pipe top



Aug. 13, 1963 E. F. WOODLAND SMOKE PIPE TOP Filed Jan. 12, 1961 FIG.3

INVENTOR. [own/Pp flaw/s WawM/vp BYWM AHORNEY United States Patent 3,100,433 SMOKE PIPE TSP Edward Francis Woodland, 26 Steel St, Youngstown, Ohio Filed Jan. 12, 1961, er. No. 82,217 2 Claims. (Cl. 98-76) This invention relates to a smoke pipe top and more particularly to a draft and weather diverter for chimneys and the like. 1 7

The principal object of the invention is the provision of a simple and efiicient smoke pipe top which will maintain the velocity of the products of combustion rising therethrough and provide Weather and draft diversion with respect to the chimney on which it is installed.

A further object of the invention is the provision of a smoke pipe top that avoids sharp turns in the vent stream of the products of combustion.

A still further objection of the invention is the provision of a smoke pipe top that is less than expensive in construction than the smoke pipe tops heretofore known in the art.

The smoke pipe top disclosed herein solves a problem which has existed for a considerable time in attempting to provide a combination draft and weather diverter for a chimney top. Under may of the conditions found with space heaters and other heating devices, it is essential that the Weather and particularly rain and snow be kept out of the vent pipe or chimney and it is equally important that a construction be provided that will avoid direct drafts such as would occur if a vent pipe having an open upper end was placed in direct communication with the space heater or other heating device. It is equally important that the products of combustion, commonly termed the vent stream, be permitted to flow in a straight path insofar as possible as one 90 turn in a vent pipe causes a decrease in flow due to friction in the amount of of the total vent stream. The device disclosed herein maintains I vent stream velocity and volume by avoiding such 90 turns and at the-same time provides weather protection for the vent pipe chimney on which the device is installed and also provides on efiicient draft diverter construction. With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the a ing, wherein: Y

FIGURE 1 is a perspective view of a chimney'top I showing the improved smoke pipe top installed thereon.

FIGURE 2 is an enlarged horizontal section on line 22 of FIGURE 1. 1

FIGURE 3 .is an enlarged horizontal section on line 3-3 of FIGURE 1 By referring to the drawings and FIGURE 1 in particular, it will be seen that a chimney 10 is shown provided with a metal top 11 having a central opening 12 and supporting a smoke pipe top thereon in communication with the opening 12. The smoke pipe top comprises a vertical section of pipe 13 having an angularly disposed second section of pipe 14 secured to its uppermost end and extending outwardly and upwardly therefrom at a 45 angle. The upper end of the second pipe 14 is substantially vertical and provided with a plurality of radially spaced tabs 15, 15 (which may alternately be in the form of a continuous flange) so that a vertically positioned third section of pipe 16 having an opening 17 ICC By referring to FIGURESZ and 3 of the drawings, it will be seen that the material of the third pipe 16 defining the upper half-of the opening '17 is flanged inwardly :as at 20 and that the flange 20 forms an arc, the middle portion of which is higher than the ends thereof. The flange 20 is inturn'ed with respect to the opening 17 and snow or rainrentening the open upper end 19 of the third pipe 16 will thus be deflected inwardly of the opening 17 and will not run into the second pipe 14. The flange 20 is shown in slightly exaggerated detail in FIG- URES 2 and 3, and it will occur, to those skilled in the art that it is actually small enough to not interfere with the vent stream flowing upwardly through the device. Still referring to FIGURES 2 and 3 of the drawings, it will be seen that the pipes 13, 14 and 16 are preferably formed of rolled sectionsof sheet metal seamed longitudinally as is customary in the art and that the joint several objects of the invention, and having thus de-' scribed my invention, what I claim is:

' 1. A smoke pipe top comprising aventical ly positioned first-pipe having the upper end thereof cut diagonally theneacrossfand a second pipe of the same diameter as said first pipeattached thereto at its lowermost end and extending therefrom at an angle thereto and communi eating therewith, the upper end of said seoondpipe (16- fining a vertically disposed curved opening, a vertically positioned third pipe having an opening in one side told I way between its. ends attached to said second pipe with said opening in registry with said upper end of said second pipe, said thirdpipe of thels ame diameter as said I first pipe having an inturned flange across the upper portion of said opening intermediate the ends thereof, said second pipe having integral outturned tabs on its upper end radially spaced therea bout and fasteners positioned through said tabsengaging said third pipe, said first pipe being adapted to receive products of combustion at its lowermost end and said third pipe adapted to vent said products of combustion at its uppermost end.

2. The smoke pipe top set forth in claim 1 and wherein said second pipe is at 45 angle to said first pipe.

References Cited in the file of this patent UNITED STATES PATENTS" 

1. A SMOKE PIPE TOP COMPRISING A VERTICALLY POSITIONED FIRST PIPE HAVING THE UPPER END THEREOF CUT DIAGONALLY THEREACROSS AND A SECOND PIPE OF THE SAME DIAMETER AS SAID FIRST PIPE ATTACHED THERETO AT ITS LOWERMOST END AND EXTENDING THEREFROM AT AN ANGLE THERETO AND COMMUNICATING THEREWITH, THE UPPER END OF SAID SECOND PIPE DEFINING A VERTICALLY DISPOSED CURVED OPENING, A VERTICALLY POSITIONED THIRD PIPE HAVING AN OPENING IN ONE SIDE MIDWAY BETWEEN ITS ENDS, ATTACHED TO SAID SECOND PIPE WITH SAID OPENING IN REGISTRY WITH SAID UPPER END OF SAID SECOND PIPE, SAID THIRD PIPE OF THE SAME DIAMETER AS SAID FIRST PIPE HAVING AN INTURNED FLANGE ACROSS THE UPPER PORTION OF SAID OPENING INTERMEDIATE THE ENDS THEREOF, SAID SECOND PIPE HAVING INTEGRAL OUTTURNED TABS ON ITS UPPER END RADIALLY SPACED THEREABOUT AND FASTENERS POSITIONED THROUGH SAID TABS ENGAGING SAID THIRD PIPE, SAID FIRST PIPE BEING ADAPTED TO RECEIVE PRODUCTS OF COMBUSTION AT ITS LOWERMOST END AND SAID THIRD PIPE ADAPTED TO VENT SAID PRODUCTS OF COMBUSTION AT ITS UPPERMOST END. 